The cast. Duh. DiCaprio and Winslet are in the upper echelon of cinema stars of their generation. I'd even watch them in an Uwe Boll movie. And they look typically strong in this trailer.

The song. It's "Wild is the Wind" by Nina Simone (according to an IMDb message board post); it's haunting as hell, and it lends a rich texture of melancholy to the trailer. Nice.

The beautiful photography and sets. Oscar-nominated cinematographer Roger Deakins worked with Mendes on the visually arresting "Jarhead," and his recent resume includes "No Country for Old Men" and "The Assassination of Jesse James." His talent is prevalent in this clip -- although the wood grains and pastels are typical of the discontented-suburban-family genre. Speaking of ...

Cons:

Another story of mid-20th-century suburbia. Hey, guess what? The idyllic post-World War II years? Turns out, they weren't so idyllic. And really, tell me something I don't know. See also: "Married Life" and Todd Haynes' terrific "Far from Heaven," which shares the same upper-middle-class Connecticut setting.

"How do you break free ... without breaking apart?" A cheesy catchphrase, typical of overwrought trailers -- which this clip borders on being.